Use fkirc/skip-duplicate-actions action in workflow

.github/workflows/build.yml

@@ -11,9 +11,28 @@ on:
     - cron: "0 5 * * 6"  # 5:00 UTC every Saturday
 
 jobs:
+  check_duplicate_runs:
+    name: Check for duplicate runs
+    continue-on-error: true
+    runs-on: ubuntu-latest
+    outputs:
+      should_skip: ${{ steps.skip_check.outputs.should_skip }}
+    steps:
+      - id: skip_check
+        uses: fkirc/skip-duplicate-actions@master
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          concurrent_skipping: always
+          cancel_others: true
+          skip_after_successful_duplicate: false
+          paths_ignore: '["**/README.rst", "**/CHANGES.rst", "**/HACKING.rst", "**/LICENSE"]'
+          do_not_skip: '["pull_request"]'
+
   build:
     name: Python ${{ matrix.python-version }}
     runs-on: ubuntu-latest
+    needs: check_duplicate_runs
+    if: ${{ needs.check_duplicate_runs.outputs.should_skip != 'true' }}
 
     strategy:
       matrix:
@@ -67,6 +86,7 @@ jobs:
 
   lint:
     name: ${{ matrix.toxenv }}
+    needs: check_duplicate_runs
     runs-on: ubuntu-latest
 
     strategy:

.gitignore

@@ -14,3 +14,4 @@ __pycache__/
 .cache
 *.DS_Store
 venv/
+.vscode